You asked:

if it's 12 pm in uk what time is it in usa

  • 12:00 p.m. in the United Kingdom is the same as 7:00 a.m. Eastern Standard Time, 3:00 a.m. Alaska Standard Time, 6:00 a.m. Central Standard Time and 2:00 a.m. Hawaii-Aleutian Standard Time in the United States.
  • the United States
    the United States
    the United Kingdom
    the United Kingdom
    7:00 a.m. Eastern Standard Time

  • 3:00 a.m. Alaska Standard Time

  • 6:00 a.m. Central Standard Time

  • 2:00 a.m. Hawaii-Aleutian Standard Time